The 5-week-old human embryo has external gill slits (grooves). they do not develop into gills, so what happens to them?

As the gills does not develop into gills, they are likely to contribute to the development of the lower jaw of the human embryo though after the embryonic stage, the gill slits won’t be retained or won’t be a part of a human as they only appear during embryonic stage for the development of the lower jaw.

a

explanation:

many plants naturally reproduce this way, but it can also be induced artificially. horticulturalists have developed asexual propagation techniques that use vegetative plant parts to replicate plants. success rates and difficulty of propagation vary greatly. monocotyledons typically lack a vascular cambium and therefore are harder to propagate.